Open-source multi-sig key management with air-gapped signing. No secure elements. No closed-source black boxes. Every line of custody code is verifiable on GitHub.
No commitment. 30-minute technical deep dive.
Purpose-built infrastructure for institutions that need to custody bitcoin at scale. Multi-sig, air-gapped signing, and full audit trails — from the team that builds Bitcoin.
Multi-signature vault creation and management with configurable quorum thresholds. Geographic key distribution across secure facilities with real-time status monitoring.
Air-gapped key generation and transaction signing via QR codes. Hardware signing devices never connect to a network. Ceremony workflows with multi-party verification.
Role-based access with granular permissions. Multi-factor authentication, approval workflows, and session management. Full separation of duties for signing operations.
Immutable audit logs for every signing event and administrative action. Exportable compliance reports mapped to regulatory frameworks. Cryptographic attestation of all operations.
Blockstream was founded by cryptographers and protocol developers who contribute to Bitcoin Core. Our custody infrastructure is built on the same open-source rigor that secures the network itself.
Open-source. Air-gapped. Auditable. Schedule a 30-minute review.